Quark–gluon vertex in general kinematicsA. Kızılersü, D.B. Leinweber, J.-I. Skullerud and A.G. WilliamsEur. Phys. J. C, 50 4 (2007) 871-875DOI: https://doi.org/10.1140/epjc/s10052-007-0250-6